“I am very disappointed the charter commission rushed to give a charter to the Baxter school and have some concerns I had from the very beginning about financial capacity and organization structure (that) have now proven to be true,” Brennan said.

Brennan sent a letter to the attorney general’s office Friday, questioning the approval process by the state’s charter commission. The request for a formal review came on the heels of allegations of mismanagement in the school by its top executive, who was recently let go.

While the Attorney General’s Office reviews the request, Brennan is asking Portland’s superintendent to stop payments to the school.

“Depending on whether or not Baxter school opens in September, there is now some question about whether or not it will open in September. The City of Portland could be sending hundreds of thousands of dollars to Baxter Academy. I need to know whether they have the financial systems in place to account for that money," Brennan said.

Members of Baxter Academy’s board are set to meet with the Maine Charter School Commission on Monday. They are expected to talk about the school’s plans going forward.

The board said it is more than willing to cooperate if there is an investigation.

“Obviously it’s a public entity,” said Allison Crean Davis. “This kind of grappling with the politics of it has happened in states before us. It’s typical. It’s part of the normal process.”

Davis said the school is looking forward to opening and has many excited parents.

Brennan is also asking for an outline of the process to appeal the Maine Charter School’s decision to grant Baxter Academy’s charter.